30140148 has 24 divisors (see below), whose sum is σ = 70884352. Its totient is φ = 9967104.

The previous prime is 30140141. The next prime is 30140171. The reversal of 30140148 is 84104103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8365 + ... + 11412.

Almost surely, 2^30140148 is an apocalyptic number.

It is an amenable number.

30140148 is an abundant number, since it is smaller than the sum of its proper divisors (40744204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30140148 is a wasteful number, since it uses less digits than its factorization.

30140148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19911 (or 19909 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 30140148 is about 5490.0043715830. The cubic root of 30140148 is about 311.2063573266.

The spelling of 30140148 in words is "thirty million, one hundred forty thousand, one hundred forty-eight".